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Rockin' a Rodenstock 40mm 70°

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#1 25585

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Posted 12 December 2019 - 08:54 AM

The Beast has been delivered. "Der Gigant von Rodenstock". Maybe "Thanatos" is too unkind, as my lady friend suggested for a name, "Dalek" was mine.

 

It feels heavier than my 31mm Celestron Axiom LX. It is definitely more solid. I will weigh it & photograph it soon. No shiny pretty silver or chrome, but a rugged beauty in semi gloss gunmetal gray barrel, and matte top. With grooves for a good grip & a safety undercut on its nose!

 

Effective eye relief is just enough wearing glasses to see the whole FoV. The Rodenstock's raised eye lens rim is rubber, so I can put my glasses lenses gently on it, to just see side to side. No SAEP, and eye positioning is easy, like a Meade SWA 40mm, though the Rodensstock gives just enough space not to be in my face.

 

So to use, and I have to rule out certain scopes as its weight would wreck their focusers, The Beast is tall as well as top heavy. My Moonlite on the 120 Equinox will just be OK, with a Clicklock. TV & Tak focusers likewise. Sky-Watchers 2" maybe at vertical. The others - Vixen, Bresser, Celestron C8 with 2" visual back & sturdy diagonal may be too feeble.

 

I'll try filter fitting shortly.

 

 

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#2 ckwastro

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Posted 12 December 2019 - 09:02 AM

 Very nice, congrats! 
 

Weight says 1450 grams....3.19 lbs. That is a beast! Looking forward to a first light report!


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#3 j.gardavsky

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Posted 12 December 2019 - 11:25 AM

Congrats!!!

 

It is looking like a pretty tactical purpose piece of optics.

When you add the tactical optics prism from Rodenstock XR Heliflex,

https://www.ebay.de/...okAAOSw9wxbkM5S

then your scope will be balanced on the Heliflex.

 

Enjoy your new eyepiece,

JG


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#4 MikeMiller

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Posted 12 December 2019 - 11:31 AM

I like that it looks like it is made out of cast iron, and looks like some kind of Victorian-age weapon. :)

 

The WO SWAN 40mm just looks like a normal eyepeice scaled up, and weights 1/3 of this.


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#5 clusterbuster

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Posted 12 December 2019 - 11:51 AM

WOW, that beast would be right at home in my C11.

Also, if you are out in the country and a Bear goes to attack you, you can just throw that thing at the Bear and get a head start runnnig !

 Congrats..

 Mark


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#6 RalphMeisterTigerMan

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Posted 12 December 2019 - 01:25 PM

"Der Gigant von Rodenstock", sounds like a brothers Grimm tale that I had to read when I had to attend saturday "German school" when I was a kid. Missed years of really good cartoons, but on the upside, I did learn German.

 

That is one "scoocum" eyepiece! WOW! Now there are 3 things that will survive a Nuclear War: 1. Cockroaches 2. Twinkies 3. Your amazing eyepiece.

 

Seriuosly though, I am envious!

Enjoy your new eyepiece!

 

RalphMeisterTigerMan


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#7 rkelley8493

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Posted 12 December 2019 - 02:32 PM

I'm guessing that austrittsspupille translates to eye relief? 25mm is pretty [Über lol.gif] long. Is that accurate? 


Edited by rkelley8493, 12 December 2019 - 02:33 PM.


#8 25585

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Posted 12 December 2019 - 02:40 PM

What is impressive is that the whole casing and nose seems to be one piece. The optics go in at top. 

 

The black insert at top is a little wobbly, so I may try gently tightening the slot head grub screws, but no lens wobble detected.

 

The eyepiece is brand new, not pre-owned. I may have to consider a FT focuser.. are r & p focusers better for heavy loads than Crayfords.     



#9 25585

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Posted 12 December 2019 - 02:48 PM

I'm guessing that austrittsspupille translates to eye relief? 25mm is pretty [Über lol.gif] long. Is that accurate? 

Effective eye relief is just OK for my glasses. Without glasses, there can be cut-offs but no SAEP.

 

A SWA 40 before decloaking is lighter. A 41 Panoptic IIRC would be too, but both seem domestic, as will a XW40, beside The Beast's smart but utility appearance. Where are those scales?      


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#10 j.gardavsky

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Posted 12 December 2019 - 03:15 PM

Jawohl,

 

Austrittspupillenlage is here evidently the eye relief, even if -länge, Augenabstand, etc., would be the more common terminology.

 

JG


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#11 rkelley8493

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Posted 12 December 2019 - 03:22 PM

What is impressive is that the whole casing and nose seems to be one piece. The optics go in at top. 

 

The black insert at top is a little wobbly, so I may try gently tightening the slot head grub screws, but no lens wobble detected.

 

The eyepiece is brand new, not pre-owned. I may have to consider a FT focuser.. are r & p focusers better for heavy loads than Crayfords.     

I'm no expert when it comes to focusers, but I would imagine that rack & pinion focusers would have more weight bearing capacity than a Crayford would. After all, most Feather Touch models are R&P designs.


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#12 Peter Besenbruch

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Posted 12 December 2019 - 04:50 PM

I'm guessing that austrittsspupille translates to eye relief?

Actually, it means exit pupil. Someone got it wrong.

 

OK I'll say it: That is one UGLY eyepiece!

 

To the OP: Enjoy.


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#13 25585

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Posted 12 December 2019 - 05:13 PM

I am hoping for beautiful views through it. 


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#14 rkelley8493

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Posted 12 December 2019 - 11:51 PM

Actually, it means exit pupil. Someone got it wrong.

I think j.gardavsky knows what he's talking about.. jawohl.  He's from Deutschland/Alemania/Germany and obviously knows the language. 


Edited by rkelley8493, 12 December 2019 - 11:52 PM.

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#15 emilslomi

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Posted 13 December 2019 - 03:33 AM

Both are right. The entire phrase, as quoted by j.gardavsky, refers to eye relief. Just the word austrittsspupille, which was first asked about, refers to the exit pupil. And yeah, j.gardavsky is German, so am I, and Peter Besenbruch is - even comes from the same town that I grew up in.

 

Emil


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#16 j.gardavsky

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Posted 13 December 2019 - 06:34 AM

Due to my life, I am now essentially bilingual,

the everyday lingua is German,

the hobbies are in English,

(the arts are in my very residual French),

 

and when it is about the swearwords, I prefer Italian.

 

What a porca miseria,

JG


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#17 rkelley8493

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Posted 13 December 2019 - 12:03 PM

Both are right. The entire phrase, as quoted by j.gardavsky, refers to eye relief. Just the word austrittsspupille, which was first asked about, refers to the exit pupil. And yeah, j.gardavsky is German, so am I, and Peter Besenbruch is - even comes from the same town that I grew up in.

 

Emil

My mistake flowerred.gif

My second lengua es de Puerto Rico [Boricua]. All my instructors but one were Puerto Rican, and the odd ball was a guy from Spain [España]. The dialects and pronunciations change from country to country, the same way British English is different than American English. But also, certain things don't translate from Spanish to English or vice versa. Examples, "Nevermind" in English translates to "olvidalo" which means "forget it", and "I don't care" translates to "no me importa" which literally means "not important to me".

Anyways... sorry for getting a little off topic. uhhh5.gif


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#18 Sarkikos

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Posted 13 December 2019 - 12:26 PM

A steampunk eyepiece!

 

:grin:

Mike


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#19 Peter Besenbruch

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Posted 13 December 2019 - 12:53 PM

I think j.gardavsky knows what he's talking about.. jawohl.  He's from Deutschland/Alemania/Germany and obviously knows the language. 

Yes, but he didn't give the definition of "Austrittsspupille." Thus a vital piece of information was lost for our non-German speaking brethren and sistren. The world is a vastly better place, now that we know that the person writing advertising copy for Rodenstock is clueless about optics and astronomy.


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#20 rkelley8493

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Posted 13 December 2019 - 01:12 PM

funnypost.gif



#21 25585

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Posted 13 December 2019 - 01:25 PM

Yes, but he didn't give the definition of "Austrittsspupille." Thus a vital piece of information was lost for our non-German speaking brethren and sistren. The world is a vastly better place, now that we know that the person writing advertising copy for Rodenstock is clueless about optics and astronomy.

Its obviously the opposite of "Eintrittspupille"   whistling.gif


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#22 25585

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Posted 17 December 2019 - 10:36 AM

Well I've jinxed the weather for the rest of 2019! No clear nights since delivery or to 31/12. 



#23 rkelley8493

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Posted 17 December 2019 - 11:17 AM

Well I've jinxed the weather for the rest of 2019! No clear nights since delivery or to 31/12. 

Well, if it makes you feel better, I've only had one clear night in almost 2 full weeks fingertap.gif

I got excited Saturday because it was supposed to be clear. I put my SCT in my back porch mechanical closet around 2:00 pm so it would be nice and cool by nightfall. I got everything setup and aligned around 6:00, then I slewed over to Cassiopeia and was going to do some comparing with my diagonals. And then... storm.gif....mostly cloudy gaah.gif


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#24 Terra Nova

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Posted 19 December 2019 - 07:56 PM

Wow! It’s YUGE!!! shocked.gif
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#25 star drop

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Posted 20 December 2019 - 08:04 PM

 dalek12.gif  Observerate! Observerate! dalek12.gif


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